Conjugação do verbo inglês
COULD SHELL

Verbo regular: shell - shelled - shelled

Afirmação

Forma simple	Forma com V-ing
I could shell you could shell he could shell we could shell you could shell they could shell	I could be shelling you could be shelling he could be shelling we could be shelling you could be shelling they could be shelling
Perfeito	Perfeito com V-ing
I could have shelled you could have shelled he could have shelled we could have shelled you could have shelled they could have shelled	I could have been shelling you could have been shelling he could have been shelling we could have been shelling you could have been shelling they could have been shelling

Negação

Forma simple	Forma com V-ing
I couldn't shell you couldn't shell he couldn't shell we couldn't shell you couldn't shell they couldn't shell	I couldn't be shelling you couldn't be shelling he couldn't be shelling we couldn't be shelling you couldn't be shelling they couldn't be shelling
Perfeito	Perfeito com V-ing
I couldn't have shelled you couldn't have shelled he couldn't have shelled we couldn't have shelled you couldn't have shelled they couldn't have shelled	I couldn't have been shelling you couldn't have been shelling he couldn't have been shelling we couldn't have been shelling you couldn't have been shelling they couldn't have been shelling

Forma interrogativa

Forma simple	Forma com V-ing
could I shell? could you shell? could he shell? could we shell? could you shell? could they shell?	could I be shelling? could you be shelling? could he be shelling? could we be shelling? could you be shelling? could they be shelling?
Perfeito	Perfeito com V-ing
could I have shelled? could you have shelled? could he have shelled? could we have shelled? could you have shelled? could they have shelled?	could I have been shelling? could you have been shelling? could he have been shelling? could we have been shelling? could you have been shelling? could they have been shelling?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I shell? couldn't you shell? couldn't he shell? couldn't we shell? couldn't you shell? couldn't they shell?	couldn't I be shelling? couldn't you be shelling? couldn't he be shelling? couldn't we be shelling? couldn't you be shelling? couldn't they be shelling?
Perfeito	Perfeito com V-ing
couldn't I have shelled? couldn't you have shelled? couldn't he have shelled? couldn't we have shelled? couldn't you have shelled? couldn't they have shelled?	couldn't I have been shelling? couldn't you have been shelling? couldn't he have been shelling? couldn't we have been shelling? couldn't you have been shelling? couldn't they have been shelling?